How to read only text from a big data?

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aneps
aneps 2017-9-18
评论： Walter Roberson 2017-9-19
I have a huge data file (.txt) with some text and numeric data. It is organized as follows:
Text1 ....
Numeric data (m1xn1)
Text2
Numeric data (m2xn2)
Text3
Numeric Data (m3xn3).....
so on...
I just want to read the data file and display Text1, Text2, Text3 etc . on the command window. How can do that? I tried the following code which read only the first line. Is it possible to modify the code to read all the text line by line? All these text has 'Scan' in it. So may be by searching for lines with 'Scan' and display in the command window. I dont know how to code this.
file = 'C:\Users\Documents\21072016_Exp_A.txt';
[fid, message] = fopen(file,'rt');
tline = fgets(fid);
disp(tline)
fclose(fid);

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Walter Roberson
Walter Roberson 2017-9-18
S = fileread(file);
S = regexp(S, '^\s*[+0123456789-].*$','match','lineanchors', 'dotexceptnewline') ;
fprintf('%s\n', S{:}) ;
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aneps
aneps 2017-9-18
Thank you.. This worked.. Yes, I also want to keep the numeric data. But the texts in the data file has important information. I need to know those when I process several data files. That is why I just want to display those in the command window.

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